Switch movement



` fundamental features.

Patented Nov. 6, 1923.

UNITED LSTATES PATENT OFFICE.

DAVID D. GORDON, OF CHICAGO, ILLINOIS, ASSIGNOR, 'BY MESNE ASSIGNMENTS, TO MCGILL MANUFACTURING COMPANY, 0.13 VALEARAISO, INDIANA, A CORPORATION F INDIANA.

SIFI'ICIEEv MOVEMENT.

Application led January 29, 1918. lSerial No. 214,288.

To all 'w hom t may concern Be it known that I, Dnvm D. GORDON, a citizen of the United .States residing at Chicago, in the county of Cook and State ot Illinois, .have invented a certain new and useful Improvement in Switch Movements, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to switch movements and has for its object the provision of a switch movement for electric circuits which in its preferred form is both of the quick make and `quick break variety.

The objects of the invention are to provide a novel switch movement which shall require but a very little'movement of the control element in order to cause the opera Ation thereof. Another object ot the invention is to vprovide a novel switch movement having very few operating parts and being readily and easily assembled. Another ob ject is to provide a switch movement in which the switch element is completely insulated from the remaining parts of the device. Another object of the invention is to provide a switch movement which shall be practically silent in its operation.

The movement itself of my invention so tar as `I am'aware is entirely novel in its Its desirable characteristics and variety 'oit' applications will bc readily apparent to those skilled in the art from the detailed description of one term of'my invention as applied to a lamp socket which l. will new give in connection with the accompanying drawing illustrative thereof, in vwhich VFig. 1 is a longitudinal sectional view of one form of switch mechanism as applied -to a lamp socket;

Fig. 2 is a sectional 2-2 of Fig. 1;

Fig. 3 is 'a perspective view of the base plate;

Fig. 4 is a perspective view of two ot' the operating parts in their disassembled conview thereof on line dit-ion Y ment in a reverse F ig. 5 is an end View of the right hand element in Fig. 4, and

Fig. 6 shows the parts of the switch move- Fig. 1. Y

The socket illustrated in the drawings position to that shown in f entirely insulated'from the remaining parts consists of the porcelain parts 10 and11 surrounded and enclosed by the customary shell and cover 13. An insulating connection 14: is provided within which the interior screw threaded contact 15 of the socket is placed, there being also a center contact 16 insulated from the contact 15. The contact 15 terminates in a stationary switch contact 17. There is a co-operating switch contact 18 which is directly connected with the incom ing leads. The center contact 16 is then also in the customary manner connected to 'the remaining of the incoming leads. In order thus to complete the circuit it is necessary to bridge the space between the stationary switch contacts 17 and 18, and this is done through the agency ot the U-shaped movable switch contact 19 which is designed to occupy two positions, the closed position, as

indicated in F ig. 1, and open position as in-V dicated in Fig. 6.

This metallic U-shaped movable switch seat carries the operating lever 211. This operating lever is loosely seated upon the seat 23 and is connected by means of a tension rod with the control element 26 of the movement. Vhenevei the lever 24 is tilted about its base into any angular position itdraws the tension rod 25 to the left. The lever 24 may be tilted into any desired angular position about its base and still effect a movement ot the tension member 25 to the lett (F ig. 1), as readily apparent. The base plate 20 has two side walls 27 and 28 extending upwardly therefrom, which side walls then have inwardly converging extensions 29. The side walls 27 and 28 have outwardly extending lugs 30, which" lugs carry iiber bearing sleeves 31. The movable switch arm 19is rotatably seated upon the bearing sleeves 31 so that this switch arm 19 may be of the operating mechanism.

erably under extension or pull tension. The

spring is secured to the operating element 32 as shown at 36 and the opposite extremity ol the spring mounted in the insulating lug 37, this insulating lug 37 being mounted upon the outermost extremity ot the movable switch element 19 and promoting therethrough as will be most clear from Figs. 1

and 2. Thus the movable switch element 19 is absolutely insulated :from all of the remaining parts ol the switch movement, including the elements 26, 32, 20, 25 and 24. The let-t hand extremity (Fig. 1.) ot the operating element 32 is conlined in its position by 'the plate extension 38 on the one side and by the extensions 29 on the other. The operating element 32 has lingers '39, which iingers co-operate with the right hand end faces (Fig. l) of the extensions 29 and B8.

By referring to Fig. 1, for instance, it is seen that this operating element 32 is held in the position it occupies by 4having its 4fingers 33 held in the slots 34 and by having the spring 35 draw its left hand extremity into engagement with the plate extension 38.

It now it is desired to reverse theI position of Vthe movable switch element 19, then the lever 24 is tilted about its base in any `suitable manner, or if desired, bodily drawn to the left (Fig. 1), whereupon the tension element 25 is moved to the lett. `this drawing' the controlelement 26 to the lett. The movement of the control element 26 to the lett causesl the operating element 32 p about the right ha-nd edge oi the extensioifl .29 in a clockwise direction` this movement continuing u-ntil the lett hand extremity ot the spring has passed beyond the center line of the projections 30. During all this movement the spring 35 has been extended and immediately the left hand extremity ot the spr-ing has passed above the projection 30, the movable switch element 19 swings by snap action into the position shown in l? 6, lalso drawing the left hand extremity ot the operating element 32 toward the ex- 'tension 29 by snap action. In this movement of 'the operating element 32, the lower fingers 39 have passed interiorly of the plateV extension 38 and have not engaged the right hand face of this plate extension.' The minute the pull -or tension upon the lever 24 is reduced, however, so that the tension to swing element 25 and the control element 26 may again move to the right, the spring 35 draws these elements to the right, at the same time that it draws the operating element 32 t0 the right. As this operating element 32 is drawn to the right, the lower lingers 39 which are-sliding along the up-v per tace of the plate extension 38 linally pass beyond the right hand extremity of this plate extension and snapinto position in a manner similar to that in which the element 32 is shown engaging the extensions 29 in Fig. 1. .The position now occupied by the parts is shown in Fig. 6. If then, the lover 211 .is again actuated. to draw its tension member 25 to the left, the operating velement 32 -now swings contra-clockwise about the right hand edge of the extension 3S as a pivot carrying the left hand extremity of the spring below the linger 30, whereupon the movable switch element 29 snaps into the position shown in Fig. 1.

It will be noted that but one spring is utilized for the entire device and that this p articular mov-ement gives both a quick make and quick break for the circuit under its control. It will also be noted that the spring 35 abuts the right hand extremities of the extensions 3S and 29, and the spring thus cushions the movincr parts and makes the device practically silent. It will also be seen that the movable switch element 19 is entirely insulated from the remaining parts ot the mechanism so that the lever 24 may be of metal, if desired.

Many modifications may be made without departing from the spirit of the invention herein disclosed and many different applications may be made of it.

Having Ahowever thus described merely one form which my invention may take, what I claim as newand desire to secure by Letters Patent is:

1. A. switch lmovement having` a switch 'clement swinga'ble between two alternative positions, and means Tor moving said switch element Yfrom either ot its positions to the' other position. by snap act-ion, said means comprising an operating velement and a spring connection extending from said operating element to said switch element so as to move said switch element from each position to the other by snap action, Aand a longitudinally reciprocatory control jelenient, said control element being connected with said operating element by means yof lixed pivots; y

2. A. switch movement having a movable switch element and means to move said switch element from one `to its alternative posit-ion by snap action, said means including a floating bodily shiftable spring operating element connected t-o said switch element, by a spring connection only so as to move the switch from `each position to the other by snap action, and a reciprocatory control element operatively connected with said operating element.

Y3. Thecombination with a lamp socket comprising` a shell, of a switch movement having a trame carrying affixed seat protruding .from the shell, a lever universally .tiltably resting on the seat whereby the seat Yacts as a fulcrum for the lever,'and means connecting the lever through the seat to the switch movement.

4. A switch movement having a movable switch element and means to move said switch element from one to its alternative position by snap action, said means including a control element movable alternately in opposite directions, a floating bodily, shiftable operating element, and :a spring interposed under extending` or pull tension between said operating element and said switch element, said operating element being confined in its position by said control element and said spring.

5. A switch movement having a movable switch element and means to move said switch element from one to its alternative position by snap action, said means including a control element movable alternately in opposite directions, a floating bodily shiftable operating element, and a spring interposed under extending or pull tension between said operating element and said switch element, said operating` element being contined in its position by said control element and said spring, said control element having means to move said operating element from one to an alternative position, thereby to bodilyshift one extremity of said spring.

6. The combination with a lamp socket Y comprising a slotted shell, of a switch movement having a frame carrying Va fixed seat protruding from the shell, a universally tiltable lever resting on the seatjwhereby the seat acts as a fulcrum for the lever, and

. a link ot fixed length pivotally secured to Y the lever and to the switch movement for connecting the lever through the seat to the switch movement. r

7. A switch movement having a movable Sivitch switch element from one to its alternative position by snap action, said means including an operating element yieldingly connected to said switch element, a reciprocatory control elementI movably connected with said operating element, and a framework having two abutments pivotally co-operating with said operating element so as to permit alternate pivotal movements thereof to move the switch element from one to its alternate position. Y

8. A switch movement having a movable switch element and means to move said switch element fromy o-ne to its alternative position by snap action, said means includelement and means to move saidy ing a floating bodily shiftable operating element yieldingly connected to said switch element, a reciprocatory control element movably connected with said operating element, and a framework' having abutments co-operating with said operating element.

9. In a device of the character described,

a shell, a switch mechanism within said shell, a bearing portion projecting from within said shell, a lever having an end portion engaging said bearing portion and tiltable thereon in any direction, and a pull connection extending from the lever through the bearing portion to said switch mechanism.

'10. A switch movement having a movable switch element and means to move said element from one to its alternate position, said means including a frame lui-ving alternate pivotal points, a manually operable control element movable alternately in opposite directions, an operating element connected to the control element and operable to hook over the said pivotal points of the frame work in alternate positions, and a spring interposed between the opera-ting and switch elements to eect said operation of the switch element.

1l. A switch movement having a mov` able switch element and means to move said element from one to its alternate posit-ion, said means including' a frame having alternate pivotal points, a manually operable control element movable alternately in opposite directions, an operating element connected to the control element and operable to hook over the said pivotal points of the frame work in alternate positions, and a spring under extending or pull tension interposed between the operating and switch elements! to effect said operation of the switch element.

12. A switch movement having a movable switchelement and means to move said element from one to its alternate position, said means including a frame having alternate pivotal points, a manually operable control element lineally movable alternating in opposite directions, an operating element connected to the control element and operable to hook over the said pivotal points of the irame work in alternate positions, anda spring interposed between. the operating and switch elements to eilect said operation of the switch element.

13. A switch movementcomprising a movable switch element movable from one to an alternate position, a manually operable reciprocable switch operating member, means connecting the said operating member and switch element so that for each complete reciprocation o'f the manual member said switch element is* moved from one position to another by snap action, said means including a single spring for eilecting such movement of the switch element and the restoring reciprocation of the manual member.

14.. A switch movement comprising a movable switch element movable from one to an alternate posi-tion, a manually operable reciprocable switch operating member, means connecting lthe said operating memher and switch elementi 'so that for eachy complete reciproeation oi the manual member said .sw-itch element is moved from one position to another by :snap action, said means including a single spring under .extending .or pull tension for effecting such lm(niement ot `the switch element and the restoring reciprocation of the manual member.

l5. A switch lmovement comprising a Vpivoted switch element movable trom one to an alternate position at its free end, a lineally reciprocable mamially operable member, an intermediate link pivotally cormected vat mae end to one `end ot said member vand having va. free end extending tonf'ard vthe other end ot said member, and an operating spring tor the :switch element extending trom the tree end of the link past its pivotal point to the switch element.

16. The combination with a. `lamp socket comprising a shell, of a switch movement having a frame carrying a tixed seat .protruding from the shell, a lever universally tiltably resting ron the seat whereby .the .seat acts `as a tulcrum for the lever, and means connecting the lever througl'i the seat 'to the switch movement, said protri-iding part also acting as guide to prevent rotary movement i1-n the shell..

17. Switching mechanism comprising a switch movement having a trame, a langed seat element on the frame, a tiltafble lever elenient seating -upon tlhel flange, a connection 'between the lever and movement, vand a guiding cooperating boss and recess `upon sa id elements.

1S. Switching mechanism comprising a switch n'iovement having a trame, a seat on,

.the tranne, .a til-table lever having a recessed Vuniversally tilted on its peripheral contact 'with the Vseat at `fixed points on :the seat.

20. Switching mechanism comprising .a switch movement, a seat, Ia lever having a .peripheral base resting on the seat, a lconnection from the lever to the movement, and guiding means whereby the lever may be .tilted in various vdirections on its peripheral contactavith the seat at fixed points von the seat.

Q1. A switch movement having a movable switch element and means to move said element r'from one .to its alternate position, said means inelilrding a frame having alternate afblitnientg-a manually operable control element movable alternately in op] )osi`te direetions, anv operating element connected to the control element for co-operative miga-gement with said abutments of the frame Work in alternate positions, and a spring interposed between the operating and `svvitch elements to effect said operation of the switch element.

22. A switch movement having a` movable savitch element and means to move sai-d element from `one to its alternate posi-tion, :sa-id means lincluding a frame having Valtern-ate abutments, a .manually operabley eontrolelenient movable alternately in opposite directions, an `operating clement connected to the control element for co-operative engagement with said abutments of the frame work in alternate positions, and a Aspring under extending or pull vtension :interposed between the operating and switch elements to yeliliect said operation of the switch element.

Q3. A switch movement having amovabie Snitch-element and means to move said element from one to its alternate position, said nfieansineluding a frame having alternate almtments, a manually operable control element. lineallly movable zalternately in oppo site directions, an operating element connected to the control element for co-operalive engagement with said abut-ments of the trame work in alteiaiate positions, and a spring interposed between the operating and switch elements to eii'ect said operation of the switch element. 'Y

ln Witness whereof, I hereunto subscribe my name this 25th day of January, A. D.,

DAVID D. GORDON. 

